40402220022245 has 4 divisors (see below), whose sum is σ = 48482664026700. Its totient is φ = 32321776017792.

The previous prime is 40402220022239. The next prime is 40402220022253. The reversal of 40402220022245 is 54222002220404.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11145869362849 + 29256350659396 = 3338543^2 + 5408914^2 .

It is a cyclic number.

It is not a de Polignac number, because 40402220022245 - 2¹⁰ = 40402220021221 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4040222002220 + ... + 4040222002229.

It is an arithmetic number, because the mean of its divisors is an integer number (12120666006675).

Almost surely, 2^{40402220022245} is an apocalyptic number.

It is an amenable number.

40402220022245 is a deficient number, since it is larger than the sum of its proper divisors (8080444004455).

40402220022245 is an equidigital number, since it uses as much as digits as its factorization.

40402220022245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8080444004454.

The product of its (nonzero) digits is 20480, while the sum is 29.

Adding to 40402220022245 its reverse (54222002220404), we get a palindrome (94624222242649).

The spelling of 40402220022245 in words is "forty trillion, four hundred two billion, two hundred twenty million, twenty-two thousand, two hundred forty-five".